<?php
/**
* Breadcrumb for Customizr
*
*
* @package      Customizr
* @subpackage   classes
* @since        3.0
* @uses     Breadcrumb Trail - A breadcrumb menu script for WordPress.
* @author     Justin Tadlock <justin@justintadlock.com>
* @author       Nicolas GUILLAUME <nicolas@presscustomizr.com>
* @copyright    Copyright (c) 2013-2015, Nicolas GUILLAUME
* @link         http://presscustomizr.com/customizr
* @license      http://www.gnu.org/licenses/old-licenses/gpl-2.0.html
*/

class CZR_breadcrumb_model_class extends CZR_Model {
  public $breadcrumb;
  private $_args;

  function czr_fn_extend_params( $model = array() ) {
    $this -> _args       = $this -> _get_args();
    $this -> breadcrumb = $this -> czr_fn_breadcrumb_trail( $this -> _args );

    return $model;
  }


  function _get_args() {
    $args =  array(
      'container'  => 'nav' , // div, nav, p, etc.
      'separator'  => '' ,
      'before'     => false,
      'after'      => false,
      'front_page' => true,
      'show_home'  => __( 'Home' , 'customizr' ),
      'network'    => false,
      'echo'       => false
    );

    /* Set up the default arguments for the breadcrumb. */
    $defaults = array(
      'container'  => 'nav' , // div, nav, p, etc.
      'separator'  => '/' ,
      'before'     => __( 'Browse:' , 'customizr' ),
      'after'      => false,
      'front_page' => true,
      'show_home'  => __( 'Home' , 'customizr' ),
      'network'    => false,
      'echo'       => true
    );

    /* Allow singular post views to have a taxonomy's terms prefixing the trail. */
    if ( is_singular() ) {
      $post = get_queried_object();
      $defaults["singular_breadcrumb_taxonomy"] = apply_filters( 'czr_display_taxonomies_in_breadcrumb' , true , $post->post_type );
    }

    /* Parse the arguments and extract them for easy variable naming. */
    return  apply_filters( 'czr_breadcrumb_trail_args' , wp_parse_args( $args, $defaults) , $args , $defaults );
  }//end of function




     /**
   * Breadcrumb Trail - A breadcrumb menu script for WordPress.
   *
   * Breadcrumb Trail is a script for showing a breadcrumb trail for any type of page.  It tries to
   * anticipate any type of structure and display the best possible trail that matches your site's
   * permalink structure.  While not perfect, it attempts to fill in the gaps left by many other
   * breadcrumb scripts.
   *
   *
   * @package   BreadcrumbTrail
   * @version   0.5.3
   * @author    Justin Tadlock <justin@justintadlock.com>
   * @copyright Copyright (c) 2008 - 2012, Justin Tadlock
   * @link      http://themehybrid.com/plugins/breadcrumb-trail
   * @license   http://www.gnu.org/licenses/old-licenses/gpl-2.0.html
   */




  /**
   * Shows a breadcrumb for all types of pages.  This function is formatting the final output of the
   * breadcrumb trail.  The breadcrumb_trail_get_items() function returns the items and this function
   * formats those items.
   *
   * @since 0.1.0
   * @access public
   * @param array $args Mixed arguments for the menu.
   * @return string Output of the breadcrumb menu.
   */

  function czr_fn_breadcrumb_trail( $args = array() ) {

    /* Create an empty variable for the breadcrumb. */
    $breadcrumb = '';

    /* Get the trail items. */
    $trail = apply_filters( 'czr_breadcrumb_trail' , $this -> czr_fn_breadcrumb_trail_get_items( $args ) );

    /* Connect the breadcrumb trail if there are items in the trail. */
    if ( !empty( $trail ) && is_array( $trail ) ) {

      /* Open the breadcrumb trail containers. */
      $breadcrumb = '<' . tag_escape( $args['container'] ) . ' class="breadcrumb" itemprop="breadcrumb">';

      /* If $before was set, wrap it in a container. */
      $breadcrumb .= ( !empty( $args['before'] ) ? '<span class="trail-before">' . $args['before'] . '</span> ' : '' );

      /* Adds the 'trail-begin' class around first item if there's more than one item. */
      if ( 1 < count( $trail ) )
        array_unshift( $trail, '<span class="trail-begin">' . array_shift( $trail ) . '</span>' );

      /* Adds the 'trail-end' class around last item. */
      array_push( $trail, '<span class="trail-end">' . array_pop( $trail ) . '</span>' );

      /* Format the separator. */
      $separator = ! empty( $args['separator'] ) ? '<span class="sep">' . $args['separator'] . '</span>' : '';

      /* Join the individual trail items into a single string. */
      $breadcrumb .= join( " {$separator} ", $trail );


      /* If $after was set, wrap it in a container. */
      $breadcrumb .= ( !empty( $args['after'] ) ? ' <span class="trail-after">' . $args['after'] . '</span>' : '' );

      /* Close the breadcrumb trail containers. */
      $breadcrumb .= '</' . tag_escape( $args['container'] ) . '>';
    }

    /* Allow developers to filter the breadcrumb trail HTML. */
    //$breadcrumb = apply_filters( array( $this , 'breadcrumb_trail' ), $breadcrumb, $args );

    /* Output the breadcrumb. */
    if ( $args['echo'] )
      echo $breadcrumb;
    else
      return $breadcrumb;
  }

  /**
   * Gets the items for the breadcrumb trail.  This is the heart of the script.  It checks the current page
   * being viewed and decided based on the information provided by WordPress what items should be
   * added to the breadcrumb trail.
   *
   * @since 0.4.0
   * @todo Build in caching based on the queried object ID.
   * @access public
   * @param array $args Mixed arguments for the menu.
   * @return array List of items to be shown in the trail.
   */
  function czr_fn_breadcrumb_trail_get_items( $args = array() ) {
    global $wp_rewrite;

    /* Set up an empty trail array and empty path. */
    $trail = array();
    $path = '';

    /* tc addon */
    $page_for_posts         = ( 'posts' != get_option('show_on_front') ) ? get_option('page_for_posts') : false;

    /* If $show_home is set and we're not on the front page of the site, link to the home page. */
    if ( !is_front_page() && $args['show_home'] ) {

      if ( is_multisite() && true === $args['network'] ) {
        $trail[] = '<a href="' . network_home_url() . '">' . $args['show_home'] . '</a>';
        $trail[] = '<a href="' . esc_url(home_url()) . '" title="' . esc_attr( get_bloginfo( 'name' ) ) . '" rel="home" class="trail-begin">' . get_bloginfo( 'name' ) . '</a>';
      } else {
        $trail[] = '<a href="' . esc_url(home_url()) . '" title="' . esc_attr( get_bloginfo( 'name' ) ) . '" rel="home" class="trail-begin">' . $args['show_home'] . '</a>';
      }
    }

    /* If bbPress is installed and we're on a bbPress page. */
    if ( function_exists( 'is_bbpress' ) && is_bbpress() ) {
      $trail = array_merge( $trail, $this -> czr_fn_breadcrumb_trail_get_bbpress_items() );
    }

    /* If WooCommerce is installed and we're on a WooCommerce page. */
    elseif ( function_exists( 'is_woocommerce' ) && is_woocommerce() ) {
      $trail = array_merge( $trail, $this -> czr_fn_breadcrumb_trail_get_woocommerce_items() );
    }
    /* If viewing the front page of the site. */
    elseif ( is_front_page() ) {

      if ( !is_paged() && $args['show_home'] && $args['front_page'] ) {

        if ( is_multisite() && true === $args['network'] ) {
          $trail[] = '<a href="' . network_home_url() . '">' . $args['show_home'] . '</a>';
          $trail[] = get_bloginfo( 'name' );
        } else {
          $trail[] = $args['show_home'];
        }
      }

      elseif ( is_paged() && $args['show_home'] && $args['front_page'] ) {

        if ( is_multisite() && true === $args['network'] ) {
          $trail[] = '<a href="' . network_home_url() . '">' . $args['show_home'] . '</a>';
          $trail[] = '<a href="' . esc_url(home_url()) . '" title="' . esc_attr( get_bloginfo( 'name' ) ) . '" rel="home" class="trail-begin">' . get_bloginfo( 'name' ) . '</a>';
        } else {
          $trail[] = '<a href="' . esc_url(home_url()) . '" title="' . esc_attr( get_bloginfo( 'name' ) ) . '" rel="home" class="trail-begin">' . $args['show_home'] . '</a>';
        }
      }
    }

    /* If viewing the "home"/posts page. */
    elseif ( is_home() ) {
      $home_page = get_page( get_queried_object_id() );

      $trail = array_merge( $trail, $this -> czr_fn_breadcrumb_trail_get_parents( $home_page->post_parent, '' ) );

      if ( is_paged() )
        $trail[]  = '<a href="' . get_permalink( $home_page->ID ) . '" title="' . esc_attr( strip_tags( get_the_title( $home_page->ID ) ) ). '">' . get_the_title( $home_page->ID ) . '</a>';
      else
        $trail[] = get_the_title( $home_page->ID );
    }

    /* If viewing a singular post (page, attachment, etc.). */
    elseif ( is_singular() ) {

      /* Get singular post variables needed. */
      $post = get_queried_object();
      $post_id = absint( get_queried_object_id() );
      $post_type = $post->post_type;
      $parent = absint( $post->post_parent );

      /* Get the post type object. */
      $post_type_object = get_post_type_object( $post_type );

      /* If viewing a singular 'post'. */
      if ( 'post' == $post_type ) {

        /* If $front has been set, add it to the $path. */
        $path .= trailingslashit( $wp_rewrite->front );

        /* If there's a path, check for parents. */
        if ( !empty( $path ) && !$page_for_posts )
          $trail = array_merge( $trail, $this -> czr_fn_breadcrumb_trail_get_parents( '' , $path ) );
        else if ( $page_for_posts )
          $trail = array_merge( $trail, $this -> czr_fn_breadcrumb_trail_get_parents( $page_for_posts , $path ) );

        /* Map the permalink structure tags to actual links. */
        /*$trail = array_merge( $trail, $this -> czr_fn_breadcrumb_trail_map_rewrite_tags( $post_id, get_option( 'permalink_structure' ), $args ) );*/
      }

      /* If viewing a singular 'attachment'. */
      elseif ( 'attachment' == $post_type ) {

        /* Get the parent post ID. */
        $parent_id = $post->post_parent;

        /* If the attachment has a parent (attached to a post). */
        if ( 0 < $parent_id ) {

          /* Get the parent post type. */
          $parent_post_type = get_post_type( $parent_id );

          /* If the post type is 'post'. */
          if ( 'post' == $parent_post_type ) {

            /* If $front has been set, add it to the $path. */
            $path .= trailingslashit( $wp_rewrite->front );

            /* If there's a path, check for parents. */
            if ( !empty( $path ) )
              $trail = array_merge( $trail, $this -> czr_fn_breadcrumb_trail_get_parents( '' , $path ) );

            /* Map the post (parent) permalink structure tags to actual links. */
            $trail = array_merge( $trail, $this -> czr_fn_breadcrumb_trail_map_rewrite_tags( $post->post_parent, get_option( 'permalink_structure' ), $args ) );
          }

          /* Custom post types. */
          elseif ( 'page' !== $parent_post_type ) {

            $parent_post_type_object = get_post_type_object( $parent_post_type );

            /* If $front has been set, add it to the $path. */
            if ( isset($parent_post_type_object->rewrite['with_front']) && $parent_post_type_object->rewrite['with_front'] && $wp_rewrite->front )
              $path .= trailingslashit( $wp_rewrite->front );

            /* If there's a slug, add it to the $path. */
            if ( !empty( $parent_post_type_object->rewrite['slug'] ) )
              $path .= $parent_post_type_object->rewrite['slug'];

            /* If there's a path, check for parents. */
            if ( !empty( $path ) )
              $trail = array_merge( $trail, $this -> czr_fn_breadcrumb_trail_get_parents( '' , $path ) );

            /* If there's an archive page, add it to the trail. */
            if ( !empty( $parent_post_type_object->has_archive ) ) {

              /* Add support for a non-standard label of 'archive_title' (special use case). */
              $label = !empty( $parent_post_type_object->labels->archive_title ) ? $parent_post_type_object->labels->archive_title : $parent_post_type_object->labels->name;

              $trail[] = '<a href="' . get_post_type_archive_link( $parent_post_type ) . '" title="' . esc_attr( $label ) . '">' . $label . '</a>';
            }
          }
        }
      }

      /* If a custom post type, check if there are any pages in its hierarchy based on the slug. */
      elseif ( 'page' !== $post_type ) {

        /* If $front has been set, add it to the $path. */
        if ( isset( $post_type_object) && isset($post_type_object->rewrite['with_front']) && $post_type_object->rewrite['with_front'] && $wp_rewrite->front )
          $path .= trailingslashit( $wp_rewrite->front );

        /* If there's a slug, add it to the $path. */
        if ( !empty( $post_type_object->rewrite['slug'] ) )
          $path .= $post_type_object->rewrite['slug'];

        /* If there's a path, check for parents. */
        if ( !empty( $path ) )
          $trail = array_merge( $trail, $this -> czr_fn_breadcrumb_trail_get_parents( '' , $path ) );

        /* If there's an archive page, add it to the trail. */
        if ( !empty( $post_type_object->has_archive ) ) {

          /* Add support for a non-standard label of 'archive_title' (special use case). */
          $label = !empty( $post_type_object->labels->archive_title ) ? $post_type_object->labels->archive_title : $post_type_object->labels->name;

          $trail[] = '<a href="' . get_post_type_archive_link( $post_type ) . '" title="' . esc_attr( $label ) . '">' . $label . '</a>';
        }
      }

      /* If the post type path returns nothing and there is a parent, get its parents. */
      if ( ( empty( $path ) && 0 !== $parent ) || ( 'attachment' == $post_type ) )
        $trail = array_merge( $trail, $this -> czr_fn_breadcrumb_trail_get_parents( $parent, '' ) );

      /* Or, if the post type is hierarchical and there's a parent, get its parents. */
      elseif ( 0 !== $parent && is_post_type_hierarchical( $post_type ) )
        $trail = array_merge( $trail, $this -> czr_fn_breadcrumb_trail_get_parents( $parent, '' ) );

      /* Display terms for specific post type taxonomy if requested. */
      if (  isset($args["singular_breadcrumb_taxonomy"]) && $args["singular_breadcrumb_taxonomy"] )
        //If post has parent, then don't add the taxonomy trail part
        $trail  = ( 1 < count($this -> czr_fn_breadcrumb_trail_get_parents($post_id) ) ) ? $trail : $this -> czr_fn_add_first_term_from_hierarchical_taxinomy( $trail , $post_id );

      /* End with the post title. */
      $post_title = single_post_title( '' , false );

      if ( 1 < get_query_var( 'page' ) && !empty( $post_title ) )
        $trail[] = '<a href="' . get_permalink( $post_id ) . '" title="' . esc_attr( $post_title ) . '">' . $post_title . '</a>';

      elseif ( !empty( $post_title ) )
        $trail[] = $post_title;
    }

    /* If we're viewing any type of archive. */
    elseif ( is_archive() ) {

      /* If viewing a taxonomy term archive. */
      if ( is_tax() || is_category() || is_tag() ) {

        /* Get some taxonomy and term variables. */
        $term = get_queried_object();
        $taxonomy = get_taxonomy( $term->taxonomy );

        /* Get the path to the term archive. Use this to determine if a page is present with it. */
        if ( is_category() )
          $path = get_option( 'category_base' );
        elseif ( is_tag() )
          $path = get_option( 'tag_base' );
        else {
          if ( isset($taxonomy->rewrite['with_front']) && $taxonomy->rewrite['with_front'] && $wp_rewrite->front )
            $path = trailingslashit( $wp_rewrite->front );
          $path .= $taxonomy->rewrite['slug'];
        }

        /* Get parent pages by path if they exist. */
        if ( $path && ! $page_for_posts)
          $trail = array_merge( $trail, $this -> czr_fn_breadcrumb_trail_get_parents( '' , $path ) );
        else if ( $page_for_posts && ( is_category() || is_tag() ) )
          $trail = array_merge( $trail, $this -> czr_fn_breadcrumb_trail_get_parents( $page_for_posts , $path ) );

        /* Add post type archive if its 'has_archive' matches the taxonomy rewrite 'slug'. */
        if ( $taxonomy->rewrite['slug'] ) {

          /* Get public post types that match the rewrite slug. */
          $post_types = get_post_types( array( 'public' => true, 'has_archive' => $taxonomy->rewrite['slug'] ), 'objects' );

          /**
           * If any post types are found, loop through them to find one that matches.
           * The reason for this is because WP doesn't match the 'has_archive' string
           * exactly when calling get_post_types(). I'm assuming it just matches 'true'.
           */
          if ( !empty( $post_types ) ) {

            foreach ( $post_types as $post_type_object ) {

              if ( $taxonomy->rewrite['slug'] === $post_type_object->has_archive ) {

                /* Add support for a non-standard label of 'archive_title' (special use case). */
                $label = !empty( $post_type_object->labels->archive_title ) ? $post_type_object->labels->archive_title : $post_type_object->labels->name;

                /* Add the post type archive link to the trail. */
                $trail[] = '<a href="' . get_post_type_archive_link( $post_type_object->name ) . '" title="' . esc_attr( $label ) . '">' . $label . '</a>';

                /* Break out of the loop. */
                break;
              }
            }
          }
        }

        /* If the taxonomy is hierarchical, list its parent terms. */
        if ( is_taxonomy_hierarchical( $term->taxonomy ) && $term->parent )
          $trail = array_merge( $trail, $this -> czr_fn_breadcrumb_trail_get_term_parents( $term->parent, $term->taxonomy ) );

        /* Add the term name to the trail end. */
        if ( is_paged() )
          $trail[] = '<a href="' . esc_url( get_term_link( $term, $term->taxonomy ) ) . '" title="' . esc_attr( single_term_title( '' , false ) ) . '">' . single_term_title( '' , false ) . '</a>';
        else
          $trail[] = single_term_title( '' , false );
      }

      /* If viewing a post type archive. */
      elseif ( is_post_type_archive() ) {

        /* Get the post type object. */
        $post_type_object = ! is_array(get_query_var( 'post_type' )) ? get_post_type_object( get_query_var( 'post_type' ) ) : array();

        /* If $front has been set, add it to the $path. */
        if ( isset($post_type_object->rewrite['with_front']) && $post_type_object->rewrite['with_front'] && $wp_rewrite->front )
          $path .= trailingslashit( $wp_rewrite->front );

        /* If there's a slug, add it to the $path. */
        if ( !empty( $post_type_object->rewrite['slug'] ) )
          $path .= $post_type_object->rewrite['slug'];

        /* If there's a path, check for parents. */
        if ( !empty( $path ) )
          $trail = array_merge( $trail, $this -> czr_fn_breadcrumb_trail_get_parents( '' , $path ) );

        /* Add the post type [plural] name to the trail end. */
        if ( is_paged() )
          $trail[] = '<a href="' . esc_url( get_post_type_archive_link( $post_type_object->name ) ) . '" title="' . esc_attr( post_type_archive_title( '' , false ) ) . '">' . post_type_archive_title( '' , false ) . '</a>';
        else
          $trail[] = post_type_archive_title( '' , false );
      }

      /* If viewing an author archive. */
      elseif ( is_author() ) {

        /* Get the user ID. */
        $user_id = get_query_var( 'author' );

        /* If $front has been set, add it to $path. */
        if ( !empty( $wp_rewrite->front ) )
          $path .= trailingslashit( $wp_rewrite->front );

        /* If an $author_base exists, add it to $path. */
        if ( !empty( $wp_rewrite->author_base ) )
          $path .= $wp_rewrite->author_base;

        /* If there's a path, check for parents. */
        if ( !empty( $path ) && !$page_for_posts )
          $trail = array_merge( $trail, $this -> czr_fn_breadcrumb_trail_get_parents( '' , $path ) );
        else if ( $page_for_posts )
          $trail = array_merge( $trail, $this -> czr_fn_breadcrumb_trail_get_parents( $page_for_posts , $path ) );

        /* Add the author's display name to the trail end. */
        if ( is_paged() )
          $trail[] = '<a href="'. esc_url( get_author_posts_url( $user_id ) ) . '" title="' . esc_attr( get_the_author_meta( 'display_name' , $user_id ) ) . '">' . get_the_author_meta( 'display_name' , $user_id ) . '</a>';
        else
          $trail[] = get_the_author_meta( 'display_name' , $user_id );
      }

      /* If viewing a time-based archive. */
      elseif ( is_time() ) {

        /* If there's a path, check for parents. */
        if ( !empty( $path ) && !$page_for_posts )
          $trail = array_merge( $trail, $this -> czr_fn_breadcrumb_trail_get_parents( '' , $path ) );
        else if ( $page_for_posts )
          $trail = array_merge( $trail, $this -> czr_fn_breadcrumb_trail_get_parents( $page_for_posts , $path ) );

        if ( get_query_var( 'minute' ) && get_query_var( 'hour' ) )
          $trail[] = get_the_time( __( 'g:i a' , 'customizr' ) );

        elseif ( get_query_var( 'minute' ) )
          $trail[] = sprintf( __( 'Minute %1$s' , 'customizr' ), get_the_time( __( 'i' , 'customizr' ) ) );

        elseif ( get_query_var( 'hour' ) )
          $trail[] = get_the_time( __( 'g a' , 'customizr' ) );
      }

      /* If viewing a date-based archive. */
      elseif ( is_date() ) {
        /* If there's a path, check for parents. */
        if ( !empty( $path ) && !$page_for_posts )
          $trail = array_merge( $trail, $this -> czr_fn_breadcrumb_trail_get_parents( '' , $path ) );
        else if ( $page_for_posts )
          $trail = array_merge( $trail, $this -> czr_fn_breadcrumb_trail_get_parents( $page_for_posts , $path ) );

        /* If $front has been set, check for parent pages. */
        if ( $wp_rewrite->front )
          $trail = array_merge( $trail, $this -> czr_fn_breadcrumb_trail_get_parents( '' , $wp_rewrite->front ) );

        if ( is_day() ) {
          $trail[] = '<a href="' . get_year_link( get_the_time( 'Y' ) ) . '" title="' . get_the_time( esc_attr__( 'Y' , 'customizr' ) ) . '">' . get_the_time( __( 'Y' , 'customizr' ) ) . '</a>';
          $trail[] = '<a href="' . get_month_link( get_the_time( 'Y' ), get_the_time( 'm' ) ) . '" title="' . get_the_time( esc_attr__( 'F' , 'customizr' ) ) . '">' . get_the_time( __( 'F' , 'customizr' ) ) . '</a>';

          if ( is_paged() )
            $trail[] = '<a href="' . get_day_link( get_the_time( 'Y' ), get_the_time( 'm' ), get_the_time( 'd' ) ) . '" title="' . get_the_time( esc_attr__( 'd' , 'customizr' ) ) . '">' . get_the_time( __( 'd' , 'customizr' ) ) . '</a>';
          else
            $trail[] = get_the_time( __( 'd' , 'customizr' ) );
        }

        elseif ( get_query_var( 'w' ) ) {
          $trail[] = '<a href="' . get_year_link( get_the_time( 'Y' ) ) . '" title="' . get_the_time( esc_attr__( 'Y' , 'customizr' ) ) . '">' . get_the_time( __( 'Y' , 'customizr' ) ) . '</a>';

          if ( is_paged() )
            $trail[] = get_archives_link( add_query_arg( array( 'm' => get_the_time( 'Y' ), 'w' => get_the_time( 'W' ) ), esc_url(home_url()) ), sprintf( __( 'Week %1$s' , 'customizr' ), get_the_time( esc_attr__( 'W' , 'customizr' ) ) ), false );
          else
            $trail[] = sprintf( __( 'Week %1$s' , 'customizr' ), get_the_time( esc_attr__( 'W' , 'customizr' ) ) );
        }

        elseif ( is_month() ) {
          $trail[] = '<a href="' . get_year_link( get_the_time( 'Y' ) ) . '" title="' . get_the_time( esc_attr__( 'Y' , 'customizr' ) ) . '">' . get_the_time( __( 'Y' , 'customizr' ) ) . '</a>';

          if ( is_paged() )
            $trail[] = '<a href="' . get_month_link( get_the_time( 'Y' ), get_the_time( 'm' ) ) . '" title="' . get_the_time( esc_attr__( 'F' , 'customizr' ) ) . '">' . get_the_time( __( 'F' , 'customizr' ) ) . '</a>';
          else
            $trail[] = get_the_time( __( 'F' , 'customizr' ) );
        }

        elseif ( is_year() ) {

          if ( is_paged() )
            $trail[] = '<a href="' . get_year_link( get_the_time( 'Y' ) ) . '" title="' . esc_attr( get_the_time( __( 'Y' , 'customizr' ) ) ) . '">' . get_the_time( __( 'Y' , 'customizr' ) ) . '</a>';
          else
            $trail[] = get_the_time( __( 'Y' , 'customizr' ) );
        }
      }
    }

    /* If viewing search results. */
    elseif ( is_search() ) {

      if ( is_paged() )
        $trail[] = '<a href="' . get_search_link() . '" title="' . sprintf( esc_attr__( 'Search results for &quot;%1$s&quot;' , 'customizr' ), esc_attr( get_search_query() ) ) . '">' . sprintf( __( 'Search results for &quot;%1$s&quot;' , 'customizr' ), esc_attr( get_search_query() ) ) . '</a>';
      else
        $trail[] = sprintf( __( 'Search results for &quot;%1$s&quot;' , 'customizr' ), esc_attr( get_search_query() ) );
    }

    /* If viewing a 404 error page. */
    elseif ( is_404() ) {
      $trail[] = __( '404 Not Found' , 'customizr' );
    }

    /* Check for pagination. */
    if ( is_paged() )
      $trail[] = sprintf( __( 'Page %d' , 'customizr' ), absint( get_query_var( 'paged' ) ) );
    elseif ( is_singular() && 1 < get_query_var( 'page' ) )
      $trail[] = sprintf( __( 'Page %d' , 'customizr' ), absint( get_query_var( 'page' ) ) );

    /* Allow devs to step in and filter the $trail array. */
    return apply_filters( 'czr_breadcrumb_trail_items' , $trail, $args );
  }



  /**
   * Gets the items for the breadcrumb trail if bbPress is installed.
   *
   * @since 0.5.0
   * @access public
   * @param array $args Mixed arguments for the menu.
   * @return array List of items to be shown in the trail.
   */
  function czr_fn_breadcrumb_trail_get_bbpress_items( $args = array() ) {

    /* Set up a new trail items array. */
    $trail = array();

    /* Get the forum post type object. */
    $post_type_object = get_post_type_object( bbp_get_forum_post_type() );

    /* If not viewing the forum root/archive page and a forum archive exists, add it. */
    if ( !empty( $post_type_object->has_archive ) && !bbp_is_forum_archive() )
      $trail[] = '<a href="' . get_post_type_archive_link( bbp_get_forum_post_type() ) . '">' . bbp_get_forum_archive_title() . '</a>';

    /* If viewing the forum root/archive. */
    if ( bbp_is_forum_archive() ) {
      $trail[] = bbp_get_forum_archive_title();
    }

    /* If viewing the topics archive. */
    elseif ( bbp_is_topic_archive() ) {
      $trail[] = bbp_get_topic_archive_title();
    }

    /* If viewing a topic tag archive. */
    elseif ( bbp_is_topic_tag() ) {
      $trail[] = bbp_get_topic_tag_name();
    }

    /* If viewing a topic tag edit page. */
    elseif ( bbp_is_topic_tag_edit() ) {
      $trail[] = '<a href="' . bbp_get_topic_tag_link() . '">' . bbp_get_topic_tag_name() . '</a>';
      $trail[] = __( 'Edit' , 'customizr' );
    }

    /* If viewing a "view" page. */
    elseif ( bbp_is_single_view() ) {
      $trail[] = bbp_get_view_title();
    }

    /* If viewing a single topic page. */
    elseif ( bbp_is_single_topic() ) {

      /* Get the queried topic. */
      $topic_id = get_queried_object_id();

      /* Get the parent items for the topic, which would be its forum (and possibly forum grandparents). */
      $trail = array_merge( $trail, $this -> czr_fn_breadcrumb_trail_get_parents( bbp_get_topic_forum_id( $topic_id ) ) );

      /* If viewing a split, merge, or edit topic page, show the link back to the topic.  Else, display topic title. */
      if ( bbp_is_topic_split() || bbp_is_topic_merge() || bbp_is_topic_edit() )
        $trail[] = '<a href="' . bbp_get_topic_permalink( $topic_id ) . '">' . bbp_get_topic_title( $topic_id ) . '</a>';
      else
        $trail[] = bbp_get_topic_title( $topic_id );

      /* If viewing a topic split page. */
      if ( bbp_is_topic_split() )
        $trail[] = __( 'Split' , 'customizr' );

      /* If viewing a topic merge page. */
      elseif ( bbp_is_topic_merge() )
        $trail[] = __( 'Merge' , 'customizr' );

      /* If viewing a topic edit page. */
      elseif ( bbp_is_topic_edit() )
        $trail[] = __( 'Edit' , 'customizr' );
    }

    /* If viewing a single reply page. */
    elseif ( bbp_is_single_reply() ) {

      /* Get the queried reply object ID. */
      $reply_id = get_queried_object_id();

      /* Get the parent items for the reply, which should be its topic. */
      $trail = array_merge( $trail, $this -> czr_fn_breadcrumb_trail_get_parents( bbp_get_reply_topic_id( $reply_id ) ) );

      /* If viewing a reply edit page, link back to the reply. Else, display the reply title. */
      if ( bbp_is_reply_edit() ) {
        $trail[] = '<a href="' . bbp_get_reply_url( $reply_id ) . '">' . bbp_get_reply_title( $reply_id ) . '</a>';
        $trail[] = __( 'Edit' , 'customizr' );

      } else {
        $trail[] = bbp_get_reply_title( $reply_id );
      }

    }

    /* If viewing a single forum. */
    elseif ( bbp_is_single_forum() ) {

      /* Get the queried forum ID and its parent forum ID. */
      $forum_id = get_queried_object_id();
      $forum_parent_id = bbp_get_forum_parent_id( $forum_id );

      /* If the forum has a parent forum, get its parent(s). */
      if ( 0 !== $forum_parent_id)
        $trail = array_merge( $trail, $this -> czr_fn_breadcrumb_trail_get_parents( $forum_parent_id ) );

      /* Add the forum title to the end of the trail. */
      $trail[] = bbp_get_forum_title( $forum_id );
    }

    /* If viewing a user page or user edit page. */
    elseif ( bbp_is_single_user() || bbp_is_single_user_edit() ) {

      if ( bbp_is_single_user_edit() ) {
        $trail[] = '<a href="' . bbp_get_user_profile_url() . '">' . bbp_get_displayed_user_field( 'display_name' ) . '</a>';
        $trail[] = __( 'Edit' , 'customizr' );
      } else {
        $trail[] = bbp_get_displayed_user_field( 'display_name' );
      }
    }

    /* Return the bbPress breadcrumb trail items. */
    return apply_filters( 'breadcrumb_trail_get_bbpress_items' , $trail, $args );
  }



  /**
  * Gets the items for the breadcrumb trail in WooCoomerce contexts
  *
  * @since 3.5.0
  * @access public
  * @param array $args Mixed arguments for the menu.
  * @return array List of items to be shown in the trail.
  */
  function czr_fn_breadcrumb_trail_get_woocommerce_items( $args = array() ) {
    $trail = array();

    if ( ! method_exists( 'WC_Breadcrumb', 'generate' ) )
      return $trail;

    $breadcrumbs = new WC_Breadcrumb();
    $wc_trails = $breadcrumbs -> generate();
    $wc_trails_length = count( $wc_trails );

    if ( ! $wc_trails_length )
      return $trail;

    //Build woocommerce breadcrumb trails
    //$breadcrumbx -> genenerate() returns a structure like:
    //array( array( Name, link) , array( Name, link)... array( Name, ) )
    $_i = 1;
    foreach ( $wc_trails as $wc_trail ) {
      if ( is_array( $wc_trail ) ) {
        if ( ! empty ( $wc_trail[1] ) && $_i < $wc_trails_length )
          $trail[] = '<a href="' . $wc_trail[1] . '" title="'. $wc_trail[0] . '">'. $wc_trail[0] .'</a>';
        elseif ( isset( $wc_trail[0] ) )
          $trail[] = $wc_trail[0];
      }
      $_i++;
    }

    /* Return the WooCommerce breadcrumb trail items. */
    return apply_filters( 'breadcrumb_trail_get_woocommerce_tems' , $trail, $args );
  }



  /**
   * Turns %tag% from permalink structures into usable links for the breadcrumb trail.  This feels kind of
   * hackish for now because we're checking for specific %tag% examples and only doing it for the 'post'
   * post type.  In the future, maybe it'll handle a wider variety of possibilities, especially for custom post
   * types.
   *
   * @since 0.4.0
   * @access public
   * @param int $post_id ID of the post whose parents we want.
   * @param string $path Path of a potential parent page.
   * @param array $args Mixed arguments for the menu.
   * @return array $trail Array of links to the post breadcrumb.
   */
  function czr_fn_breadcrumb_trail_map_rewrite_tags( $post_id = '' , $path = '' , $args = array() ) {

    /* Set up an empty $trail array. */
    $trail = array();

    /* Make sure there's a $path and $post_id before continuing. */
    if ( empty( $path ) || empty( $post_id ) )
      return $trail;

    /* Get the post based on the post ID. */
    $post = get_post( $post_id );

    /* If no post is returned, an error is returned, or the post does not have a 'post' post type, return. */
    if ( empty( $post ) || is_wp_error( $post ) || 'post' !== $post->post_type )
      return $trail;

    /* Trim '/' from both sides of the $path. */
    $path = trim( $path, '/' );

    /* Split the $path into an array of strings. */
    $matches = explode( '/' , $path );

    /* If matches are found for the path. */
    if ( is_array( $matches ) ) {

      /* Loop through each of the matches, adding each to the $trail array. */
      foreach ( $matches as $match ) {

        /* Trim any '/' from the $match. */
        $tag = trim( $match, '/' );

        /* If using the %year% tag, add a link to the yearly archive. */
        if ( '%year%' == $tag )
          $trail[] = '<a href="' . get_year_link( get_the_time( 'Y' , $post_id ) ) . '" title="' . get_the_time( esc_attr__( 'Y' , 'customizr' ), $post_id ) . '">' . get_the_time( __( 'Y' , 'customizr' ), $post_id ) . '</a>';

        /* If using the %monthnum% tag, add a link to the monthly archive. */
        elseif ( '%monthnum%' == $tag )
          $trail[] = '<a href="' . get_month_link( get_the_time( 'Y' , $post_id ), get_the_time( 'm' , $post_id ) ) . '" title="' . get_the_time( esc_attr__( 'F Y' , 'customizr' ), $post_id ) . '">' . get_the_time( __( 'F' , 'customizr' ), $post_id ) . '</a>';

        /* If using the %day% tag, add a link to the daily archive. */
        elseif ( '%day%' == $tag )
          $trail[] = '<a href="' . get_day_link( get_the_time( 'Y' , $post_id ), get_the_time( 'm' , $post_id ), get_the_time( 'd' , $post_id ) ) . '" title="' . get_the_time( esc_attr__( 'F j, Y' , 'customizr' ), $post_id ) . '">' . get_the_time( __( 'd' , 'customizr' ), $post_id ) . '</a>';

        /* If using the %author% tag, add a link to the post author archive. */
        elseif ( '%author%' == $tag )
          $trail[] = '<a href="' . get_author_posts_url( $post->post_author ) . '" title="' . esc_attr( get_the_author_meta( 'display_name' , $post->post_author ) ) . '">' . get_the_author_meta( 'display_name' , $post->post_author ) . '</a>';

        /* If using the %category% tag, add a link to the first category archive to match permalinks. */
        /*elseif ( '%category%' == $tag && isset($args["singular_breadcrumb_taxonomy"]) && $args["singular_breadcrumb_taxonomy"] ) {

          $trail  = $this -> czr_fn_add_first_term_from_hierarchical_taxinomy( $trail , $post_id );
        }*/
      }
    }

    /* Return the $trail array. */
    return $trail;
  }



  /**
   * Gets parent pages of any post type or taxonomy by the ID or Path.  The goal of this function is to create
   * a clear path back to home given what would normally be a "ghost" directory.  If any page matches the given
   * path, it'll be added.  But, it's also just a way to check for a hierarchy with hierarchical post types.
   *
   * @since 0.3.0
   * @access public
   * @param int $post_id ID of the post whose parents we want.
   * @param string $path Path of a potential parent page.
   * @return array $trail Array of parent page links.
   */
  function czr_fn_breadcrumb_trail_get_parents( $post_id = '' , $path = '' ) {
    /* Set up an empty trail array. */
    $trail = array();

    /* Trim '/' off $path in case we just got a simple '/' instead of a real path. */
    $path = trim( $path, '/' );

    /* If neither a post ID nor path set, return an empty array. */
    if ( empty( $post_id ) && empty( $path ) )
      return $trail;

    /* If the post ID is empty, use the path to get the ID. */
    if ( empty( $post_id ) ) {

      /* Get parent post by the path. */
      $parent_page = get_page_by_path( $path );

      /* If a parent post is found, set the $post_id variable to it. */
      if ( !empty( $parent_page ) )
        $post_id = $parent_page->ID;
    }

    /* If a post ID and path is set, search for a post by the given path. */
    if ( $post_id == 0 && !empty( $path ) ) {

      /* Separate post names into separate paths by '/'. */
      $path = trim( $path, '/' );
      preg_match_all( "/\/.*?\z/", $path, $matches );

      /* If matches are found for the path. */
      if ( isset( $matches ) ) {

        /* Reverse the array of matches to search for posts in the proper order. */
        $matches = array_reverse( $matches );

        /* Loop through each of the path matches. */
        foreach ( $matches as $match ) {

          /* If a match is found. */
          if ( isset( $match[0] ) ) {

            /* Get the parent post by the given path. */
            $path = str_replace( $match[0], '' , $path );
            $parent_page = get_page_by_path( trim( $path, '/' ) );

            /* If a parent post is found, set the $post_id and break out of the loop. */
            if ( !empty( $parent_page ) && $parent_page->ID > 0 ) {
              $post_id = $parent_page->ID;
              break;
            }
          }
        }
      }
    }


    /* While there's a post ID, add the post link to the $parents array. */
    while ( $post_id ) {

      /* Get the post by ID. */
      $page = get_page( $post_id );

      /* Add the formatted post link to the array of parents. */
      $parents[$post_id]  = '<a href="' . get_permalink( $post_id ) . '" title="' . esc_attr( strip_tags( get_the_title( $post_id ) ) ) . '">' . get_the_title( $post_id ) . '</a>';

      /* Set the parent post's parent to the post ID. */
      $post_id = $page->post_parent;
    }


    if ( ! isset( $parents ) )
      return $trail;

    /* If we have parent posts, reverse the array to put them in the proper order for the trail. */
    //get last parents arrey key = parent post id
    while( $el = current($parents) ) {
        $parent_key =  key($parents);
        next($parents);
    }

    $first_parent_post  = get_post($parent_key);
    $args       = $this -> _args;

    /*if (  isset($args["singular_breadcrumb_taxonomy"]) && $args["singular_breadcrumb_taxonomy"] )
      $trail  = $this -> czr_fn_add_first_term_from_hierarchical_taxinomy( $trail , $parent_key );*/

    foreach (array_reverse($parents) as $key => $value)
      $trail[] = $value;

    /* Return the trail of parent posts. */
    return $trail;
  }



  /**
   * Searches for term parents of hierarchical taxonomies.  This function is similar to the WordPress
   * function get_category_parents() but handles any type of taxonomy.
   *
   * @since 0.3.0
   * @access public
   * @param int $parent_id The ID of the first parent.
   * @param object|string $taxonomy The taxonomy of the term whose parents we want.
   * @return array $trail Array of links to parent terms.
   */
  function czr_fn_breadcrumb_trail_get_term_parents( $parent_id = '' , $taxonomy = '' ) {

    /* Set up some default arrays. */
    $trail = array();
    $parents = array();

    /* If no term parent ID or taxonomy is given, return an empty array. */
    if ( empty( $parent_id ) || empty( $taxonomy ) )
      return $trail;

    /* While there is a parent ID, add the parent term link to the $parents array. */
    while ( $parent_id ) {

      /* Get the parent term. */
      $parent = get_term( $parent_id, $taxonomy );

      /* Add the formatted term link to the array of parent terms. */
      $parents[] = '<a href="' . get_term_link( $parent, $taxonomy ) . '" title="' . esc_attr( $parent->name ) . '">' . $parent->name . '</a>';

      /* Set the parent term's parent as the parent ID. */
      $parent_id = $parent->parent;
    }

    /* If we have parent terms, reverse the array to put them in the proper order for the trail. */
    if ( !empty( $parents ) )
      $trail = array_reverse( $parents );

    /* Return the trail of parent terms. */
    return $trail;
  }


  function czr_fn_add_first_term_from_hierarchical_taxinomy( $trail , $post_id ) {
    // get post by post id
      $post = get_post( $post_id );

      // get post type by post
      $post_type = $post->post_type;

      // get post type taxonomies
      $taxonomies = get_object_taxonomies( $post_type, 'objects' );

      $first_hierarchical_tax = array();
      foreach ($taxonomies as $key => $data) {
        if ( true != $data -> hierarchical && ! empty($first_hierarchical_tax) )
          continue;
        else
          $first_hierarchical_tax = (true == $data -> hierarchical) ? $data : $first_hierarchical_tax;
      }

      //does nothing if no hierarchical tax was found
      if ( empty($first_hierarchical_tax) )
        return $trail;

    //get the tax terms
    $terms      = isset($first_hierarchical_tax -> name) ? get_the_terms( $post_id ,$first_hierarchical_tax -> name ) : false;

    //does nothing if no terms was found
    if ( ! $terms || empty($terms) )
        return $trail;

    //get the first tax term of the list
    $first_term   = array_shift($terms);

    // If the taxonomy term has a parent, add the hierarchy to the trail.
    if ( 0 !== $first_term -> parent )
      $trail = array_merge( $trail, $this -> czr_fn_breadcrumb_trail_get_term_parents( $first_term -> parent , $first_hierarchical_tax -> name ) );

    //Add the taxonomy term archive link to the trail.
    $trail[] = '<a href="' . get_term_link( $first_term,  $first_hierarchical_tax -> name ) . '" title="' . esc_attr( $first_term->name ) . '">' . $first_term->name . '</a>';

    return $trail;
  }//end function

}//end of class